without-alloc is used at run time in 33 crates (of which 12 optionally). It is a direct run-time dependency in 5 crates.

Depender (with downloads and own rev deps) without-alloc version
10K 13 serum_dex ^0.2.1
290 2 openbook_dex ^0.2.1
130 2 serum ^0.2.1
mai3_serum_dex ^0.2.1
daisy_bsp optional ^0.2.1